MALICIOUS
180
Risk Score
Heuristics 5
-
XLM Auto_Open workbook with payload URL or enable-content lure critical OLE_XLM_AUTOOPEN_PAYLOAD_LUREWorkbook contains an Excel 4.0 macro sheet with Auto_Open / Auto_Close and also exposes a payload URL or enable-content lure in the OLE bytes. This combination is a high-confidence XLM downloader/social-engineering pattern even when formula recovery cannot decode the full macro chain.
-
Excel 4.0 Auto_Open defined name critical OLE_XLM_AUTOOPEN_DEFINEDNAMEoletools recovered an Auto_Open / Auto_Close entry from an Excel 4.0 macro sheet. The raw BIFF name can be tokenized or partially opaque to byte-string checks, but the recovered macro listing confirms the workbook has an XLM auto-execution entry.
-
Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPENWorkbook contains an Excel 4.0 macro sheet sub-stream — XLM is rarely seen in modern legitimate workbooks and was a major Office malware vector during 2020-2022.
-
Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
-
Document signing service impersonation lure medium SE_DOCUSIGN_LUREDocument impersonates DocuSign, Adobe Sign, or a similar signing service in a signing-request context
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
xlm_macros.txt |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 2255 bytes |
SHA-256: 75fe9d9f30fafc4f16de9f927e37480eac5c8eb4707ad096446109a83ec6c9ee |
|||
Preview scriptFirst 1,000 lines of the extracted script
' 0085 15 BOUNDSHEET : Sheet Information - worksheet or dialog sheet, visible - DocuSign ' 0085 15 BOUNDSHEET : Sheet Information - Excel 4.0 macro sheet, hidden - llloooee ' 0085 11 BOUNDSHEET : Sheet Information - Excel 4.0 macro sheet, hidden - File ' 0018 30 LABEL : Cell Value, String Constant - _xlfn.BAHTTEXT hidden len=2 ptgErr *INCOMPLETE FORMULA PARSING* Remaining, unparsed expression: b'\x1d' ' 0018 30 LABEL : Cell Value, String Constant - _xlfn.TEXTJOIN hidden len=2 ptgErr *INCOMPLETE FORMULA PARSING* Remaining, unparsed expression: b'\x1d' ' 0018 28 LABEL : Cell Value, String Constant - JERUI len=9 ptgNum FLOAT -679215104.000000 ' 0018 33 LABEL : Cell Value, String Constant - built-in-name 1 Auto_Open len=18 ptgRef3d 65535!A1 *UNKNOWN TOKEN* 0x0000 *INCOMPLETE FORMULA PARSING* Remaining, unparsed expression: b'\x00\x01\x00\x02\x00\x02\x00\x03\x00\x00' ' 002a 2 PRINTHEADERS : Print Row/Column Labels ' 0204 142 LABEL : Cell Value, String Constant ' 0204 151 LABEL : Cell Value, String Constant ' 0204 139 LABEL : Cell Value, String Constant ' 0204 150 LABEL : Cell Value, String Constant ' 002a 2 PRINTHEADERS : Print Row/Column Labels ' 002a 2 PRINTHEADERS : Print Row/Column Labels ' 0204 15 LABEL : Cell Value, String Constant ' 0204 14 LABEL : Cell Value, String Constant ' 0204 24 LABEL : Cell Value, String Constant ' 0204 30 LABEL : Cell Value, String Constant ' 0204 10 LABEL : Cell Value, String Constant ' 0204 40 LABEL : Cell Value, String Constant ' 0204 10 LABEL : Cell Value, String Constant ' 0204 27 LABEL : Cell Value, String Constant ' 0204 35 LABEL : Cell Value, String Constant ' 0204 33 LABEL : Cell Value, String Constant ' Sheet,Reference,Formula,Value ' DocuSign,B18,65535!A1,"" ' DocuSign,B19,65535!A1,"" ' DocuSign,B20,65535!A1,"" ' DocuSign,B21,65535!A1,"" ' llloooee,Q18,"<ERROR>","" ' llloooee,Q19,"<ERROR>","" ' llloooee,Q20,"<ERROR>","" ' llloooee,Q21,"<ERROR>","" ' llloooee,Q22,"<ERROR>","" ' llloooee,Q25,HALT(),"" ' File,A7,"['NOW()', '\x8fW49166']","" ' File,A10,65535!A1,"" ' File,A11,JERUI,"" ' File,A12,JERUI,"" ' File,A13,JERUI,"" ' File,A14,JERUI,"" ' File,A15,JERUI,"" ' File,A20,65534!A1,"" |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.